Original scientific paper

https://doi.org/10.17559/TV-20141026162349

Calibration procedure and uncertainty analysis of an electronic scale based on two-current source supplied circuit

Wojciech Walendziuk orcid.org/0000-0002-2607-0619 ; Bialystok University of Technology, Department of Electrical Engineering, ul. Wiejska 45D, Bialystok, Poland
Adam Idzkowski orcid.org/0000-0002-1671-8979 ; Bialystok University of Technology, Department of Electrical Engineering, ul. Wiejska 45D, Bialystok, Poland

Abstract

The article presents the prototype version of an original weight scale in which a non-conventional supplying circuit of strain gauge load cells is applied. The paper discusses construction of an electrical circuit, the way of strain gauge transducer connection and the measuring procedure. As far as the authors know, this novel electrical circuit and its application in a weight scale system have never been mentioned in literature. The specifications for direct-reading weight scales typically include readability, repeatability, linearity and eccentricity. The values of these parameters were estimated and used for calculation of the weight measurement uncertainty in the tested measuring range of the designed device.

Keywords

measurement uncertainty; strain measurement; weight measurement

Hrčak ID:

181246

URI

https://hrcak.srce.hr/181246

Publication date:

10.5.2017.

Article data in other languages: croatian

Visits: 7.878 *